Flow Chart of Sulfate and Chloride TiO2 Production Process Sulfate process stages (yellow), chloride process stages (cyan) and the final stage common to both (green), ending in the rutile, anatase and nano-TiO2 product families. Flow Chart of Sulfate and Chloride TiO2 Production Process Sulfate Process (SP) Chloride Process (CP) Final Stage (common for SP and CP) Digestion Reduction Sedimentation and Filtration Filtration of Clear Liquor Crystallization and Ferrous Sulfate Removal Digester Gas Scrubbing Ferrous Sulfate Disposal Hydrolysis Filtration (Pre-Leach) Bleaching Filtration (Post-Leach) Salt Treatment Dehydration Before Calcination Calcination and Cooling Acid Waste Recycling Hydrolysis Acid Recycling Calcinator Gas Scrubbing Chlorination of Titanium Raw Material Condensation of Chlorides TiCl4 Distillation TiCl4 Oxidation Metal Chlorides Disposal Exhaust Gas Scrubbing Metal Chlorides Disposal Dry Milling Wet Milling and Classification Surface Treatment Filtration Drying Micronization Packing and Palletizing Rutile Grades for Paint&Coatings: - P&C Type 1 - P&C Type 2 - P&C Type 3 - P&C Type 4 - P&C Type 5 - P&C Type 6 (Subtype A) - P&C Type 6 (Subtype B) Rutile Grades for Plastics: - Plastic Type 1 - Plastic Type 2 - Plastic Type 3 Rutile Grades for Decor Paper: - DP Type 1 Rutile Grades for Special Applications Nano-TiO2 Grades for Special Applications Untreated Anatase Grades for Various Applications Treated Anatase Grades for Various Applications
Sulfate Process (SP) Digestion Reduction Sedimentation and Filtration Filtration of Clear Liquor Crystallization and Ferrous Sulfate Removal Hydrolysis Filtration (Pre-Leach) Bleaching Filtration (Post-Leach) Salt Treatment Dehydration Before Calcination Calcination and Cooling Sulfate process auxiliary stages Digester Gas Scrubbing Ferrous Sulfate Disposal Acid Waste Recycling Hydrolysis Acid Recycling Calcinator Gas Scrubbing Chloride Process (CP) Chlorination of Titanium Raw Material Condensation of Chlorides TiCl4 Distillation TiCl4 Oxidation Chloride process auxiliary stages Metal Chlorides Disposal Exhaust Gas Scrubbing Metal Chlorides Disposal Final Stage (common for SP and CP) Dry Milling Wet Milling and Classification Surface Treatment Filtration Drying Micronization Packing and Palletizing Products Rutile Grades for Paint&Coatings: P&C Type 1, P&C Type 2, P&C Type 3, P&C Type 4, P&C Type 5, P&C Type 6 (Subtype A), P&C Type 6 (Subtype B) Rutile Grades for Plastics: Plastic Type 1, Plastic Type 2, Plastic Type 3 Rutile Grades for Decor Paper: DP Type 1 Rutile Grades for Special Applications Nano-TiO2 Grades for Special Applications Untreated Anatase Grades for Various Applications Treated Anatase Grades for Various Applications We can propose the technologies, knowledge and Know-How of Sulphate process (yellow background) and for Common area of Sulphate and Chloride processes (green background).